CVE-2026-46125
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: remove station if connection prep fails If connection preparation fails for MLO connections, then the interface is completely reset to non-MLD.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: remove station if connection prep fails If connection preparation fails for MLO connections, then the interface is completely reset to non-MLD. In this case, we must not keep the station since it's related to the link of the vif being removed. Delete an existing station. Any "new_sta" is already being removed, so that doesn't need changes. This fixes a use-after-free/double-free in debugfs if that's enabled, because a vif going from MLD (and to MLD, but that's not relevant here) recreates its entire debugfs.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.30% probability · 23th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416, CWE-825
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/18fed0a209500bfea5c4c08609ec93855e4e500bPatch
- https://git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1Patch
- https://git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4Patch
- https://git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0Patch
- https://git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270aPatch
- https://git.kernel.org/stable/c/fe75fa1ac9a92990f7fc3d34b17808fd933071b2Patch
- https://access.redhat.com/errata/RHSA-2026:26427
- https://access.redhat.com/errata/RHSA-2026:26428
- https://access.redhat.com/errata/RHSA-2026:26462
- https://access.redhat.com/errata/RHSA-2026:26515
- https://access.redhat.com/errata/RHSA-2026:26563
- https://access.redhat.com/errata/RHSA-2026:27288
- https://access.redhat.com/errata/RHSA-2026:27708
- https://access.redhat.com/errata/RHSA-2026:27731
- https://access.redhat.com/errata/RHSA-2026:27735
- https://access.redhat.com/errata/RHSA-2026:27789
- https://access.redhat.com/security/cve/CVE-2026-46125
- https://bugzilla.redhat.com/show_bug.cgi?id=2482608
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46125.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.